(1:08) AIR RAID SIREN: A world war two 'Carter' air raid siren as used during the London blitz. Delivered in CD quality WAV format. Keywords: Air Raid Siren, Airraid, Siren Sound, World War Two, WW2 Second World War, London Blitz, Sirens, Air Raid Sounds, War Sounds, Alarm Sound, Bombing, Luftwaffe